corkers

Hi, i have a mk4 bonus that i have bought as a project with rs turbo running gear, when i accelerate in 1st and 2nd it will go all way to red band but in 3rd it will only go to roughly 4k and the rev counter go to zero and looses all power as if i have put the brakes on till i change up to 4th, any ideas wot this could be??

the engine is a mfi rs turbo
gearbox is a fiesta turbo non lsd i was told........ i have had this rebiult and an lsd fitted as i thought this was the problem but it still happens! any ideas what could be causing this?

thanks for reading and hope you can suggest anything

Just to let you know i have fitted the recon gearbox new clutch so cant be this

cheers, Nick

GVK.

Does it do it in 4th/5th gear as well?

Have you got a boost gauge, if so what is it reading?

Do you know if the ECU is chipped?

corkers

it does in 4th and i dont kno if its been chipped the engine is standard by the looks of it, standard rad, intercooler, turbo, air filter etc and no i aint got a boost guage

GVK.

Really need to find out what boost it's doing, it could be set too high and then, depending on if it's chipped or not, could be hitting 'boost cut' and cutting out the ignition.

Can you see if it's got a bleed valve on the turbo pipework?

read this thread - https://passionford.com/forum/ford-e...nder-load.html

corkers

yeh thats a valve u can turn isnt it turn boost up and down its got that. . . . so would you suggest takin to specialist to set up?? how much would i roughly be looking at for someone to do this?? and im in the worcestershire (west mids) area any suggestions who to go to?

GVK.

Mark the bleed valve so you know where it's set at the moment, then screw it in (anti-clockwise) a turn, and see if it cures it.

Best to get it set up properly, don't know anyone over that way that specialises in RSTs.
I used to live nr Worcester!

Could try hi-tech (near Merry Hill)

http://www.hitechmotorsport.co.uk/

https://passionford.com/forum/ford-e...ands-area.html

corkers

ok thanks for your help, my insurance has run out on it 2day and not getting any on it till July so will take it up to someone then, just thought while its in the garage i could try sort or replace anything my self, would it be anything major like turbo or anything? as it doesnt do it in 1st or 2nd, and it drives great except or that lol very smooth and not lumpy

GVK.

It sounds like it is overboosting in 3rd gear onwards, you don't get the same load on the engine in 1st and 2nd.

corkers

ok cheers...... my rad looks like its seen better days what rad would you recommend and while im there i would like to replace the intercooler while its off the road, but i dont want to cut a big whole in the bumper as i like the standard looks ....... i have also fitted a 82c thermo and a msd fan switch to cut the fan in earlier, steel quadrant and mk5pedal while i had the whole lot out anything else you would suggest doing before i had it set up? im not looking for big power just a fun drive

paul-h

I've got a pace cooler on mine but really like my mates airtec, can get fans on rad with that kit which keeps his ALOT cooler than mine!

As said above it will be The boost cut that's holding you back!

corkers

are the airtech a bit tricky to fit in? read on here they have to be modified a little to fit

and cheers for the boost advise looks like a trip to get it set up properly is in order in July